Deep residual networks for flamelet/progress variable tabulation with application to a piloted flame with inhomogeneous inlet

M Hansinger, Y Ge, M Pfitzner - Combustion Science and …, 2022 - Taylor & Francis
In this work, a deep neural network is presented which is trained on flamelet/progress
variable (FPV) tables and validated in a combustion large eddy simulation (LES) of the …

Large-eddy simulations of the mascotte test cases operating at supercritical pressure

T Schmitt - Flow, Turbulence and Combustion, 2020 - Springer
Liquid rocket, Diesel or aircraft engines may operate in the transcritical regime. In such
thermodynamic conditions, the classical phase change that occurs at subcritical pressure …

Heat Transfer and Combustion Simulation of Seven-Element / Rocket Combustor

N Perakis, D Rahn, OJ Haidn… - Journal of Propulsion and …, 2019 - arc.aiaa.org
In the present Paper, the simulation of the flow inside an experimental GOX/GCH 4 rocket
thrust chamber is undertaken. The combustor's injector consists of seven individual coaxial …

Assessment of statistical and kinetics-based models for lox-methane green propellant combustion

A Sharma, A De, SS Kumar - … Journal of Energy for a Clean …, 2023 - dl.begellhouse.com
In this article, we present a comprehensive review and numerical analysis of liquid oxygen
(LOx)-methane (CH 4) combustion at supercritical pressures. A detailed review of numerical …

Numerical investigation of supercritical combustion dynamics in a multi-element LOx–methane combustor using flamelet-generated manifold approach

A Sharma, A De, SS Kumar - Physics of Fluids, 2023 - pubs.aip.org
The article investigates liquid oxygen (LOx)–methane supercritical combustion dynamics in
a multi-element rocket-scale combustor using large eddy simulation (LES). A complex …

Time-resolved flow field and thermal loads in a single-element GOx/GCH4 rocket combustor

J Zips, C Traxinger, M Pfitzner - International Journal of Heat and Mass …, 2019 - Elsevier
Abstract This work presents Large Eddy Simulations of a single-element GOx-GCH 4
combustion chamber at elevated pressure. A robust and efficient flamelet model accounting …

Single-phase instability in non-premixed flames under liquid rocket engine relevant conditions

C Traxinger, J Zips, M Pfitzner - Journal of Propulsion and Power, 2019 - arc.aiaa.org
Under rocket-relevant conditions, real-gas effects and thermodynamic nonidealities are
prominent features of the flow field. Experimental investigations indicate that phase …

Assessment of presumed/transported probability density function methods for rocket combustion simulations

J Zips, C Traxinger, P Breda, M Pfitzner - Journal of Propulsion and …, 2019 - arc.aiaa.org
Combustion models of different fidelity are applied to a seven-element gaseous
methane/oxygen subscale rocket combustion chamber. The covered region of thermo …

Mixture fraction statistics in methane-oxygen turbulent combustion for space propulsion

D Martinez-Sanchis, A Sternin… - Aerospace Science and …, 2023 - Elsevier
Two high-pressure turbulent non-premixed methane-oxygen flames are simulated using the
unsteady reactive solver EBI-DNS. The results are used to investigate the statistics of the …

[PDF][PDF] A Comprehensive Review of Flamelet Methods: Future Directions and Emerging Challenges

MN Nejaamtheen, JY Choi - Energies, 2024 - researchgate.net
Understanding and accurately modeling combustion processes in engines across a wide
range of operating conditions is critical for advancing both subsonic and supersonic …